BACKGROUND OF THE STUDYMobile phones were introduced in few markets in the1980s, and their use spread only in the mid1990s. Subscribers increased from 12.4 million in 1990 to 500 million in 2000 to 3.3 billion in 2008 and 5.3 billion at the end of 2013. Estimations show that the prevalence of mobile use will be increased to 95% and further more in the coming years. The use of mobile phones is now so extensive that in some countries the number of phone subscriptions outnumbers the population. Indian market is one of the largest in the world for mobile phones.15 The number of mobile device users around the world has grown to 5.035 billion, (2017) with the latest billion users being added in just the last four years, according to new statistics released by GSMA Intelligence.16 For 2017 the number of mobile phone users in India was around 730.7 million which is increasing every year. 17 The largest populous state in India, Uttar Pradesh has emerged as the state with largest number of cell phone subscribers in the country which is followed by Tamil Nadu, Maharashtra, Andhra Pradesh and Bihar. There are lakhs of people concentrated in each area of Uttar Pradesh, the capital of this cell phone number is Lucknow and other locations in Uttar Pradesh are Kanpur, Lucknow, Varanasi, Allahabad, and Farukhabad out of no. of district.
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